Clinical sciences are basically concerned with the study of biological systems, including fluid, cellular, molecular, and genetic systems for their proper and healthy functioning. Clinical investigation is a comprehensive laboratory examination of blood, urine, feces and other tissues, enzymes and biological materials to detect whether or not the biological system is healthy. Clinical sciences are constantly looking for investigative tools and techniques that can effectively detect the root cause of the problem in case of diseases, so that doctors can address the problem efficiently. Clinical research is essential in the diagnosis, recovery from treatment and patient rehabilitation. Advances in clinical research lead to new diagnostic procedures, drug design and development, and innovative delivery mechanisms. Dissemination of clinical research findings through peer-reviewed, open-access clinical journals enables clinicians, practitioners, and physicians to apply this knowledge in practical ways.